Water-Driven Structural Transformation in Cobalt Trimesate Metal-Organic Frameworks

Jayashree Ethiraj, Vinayagam Surya, Parasuraman Selvam and Jenny G. Vitillo
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Jayashree Ethiraj: National Centre for Catalysis Research, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
Vinayagam Surya: National Centre for Catalysis Research, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
Parasuraman Selvam: National Centre for Catalysis Research, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
Jenny G. Vitillo: Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy

Energies, 2021, vol. 14, issue 16, 1-11

Abstract: We report on the synthesis and the characterization of a novel cobalt trimesate metal-organic framework, designated as KCL-102. Powder X-ray diffraction pattern of KCL-102 is dominated by a reflection at 10.2° (d-spacing = 8.7 Å), while diffuse reflectance UV-Vis spectroscopy indicates that the divalent cobalt centers are in two different coordination geometries: tetrahedral and octahedral. Further, the material shows low stability in humid air, and it transforms into the well-known phase of hydrous cobalt trimesate, Co 3 (BTC) 2 ·12H 2 O. We associated this transition with the conversion of the tetrahedral cobalt to octahedral cobalt.

Keywords: MOFs; solvothermal synthesis; cobalt trimesate; Co 3 (BTC) 2 ·12H 2 O (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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